"TIFF (Tiled)" - what does it mean?

[Peter2]

I got TIFF-files (CCITT 4, b/w) where the format is displayed as "TIFF (Tiled)"?

What does it mean? Advantage or disadvantage?

Peter

[xnview]

Data are tiled (256x256 for example), and compressed separately

[XnTriq]

Tiled Multi-Resolution (or Tiled Pyramidal) TIFF is simply a tiled multi-page TIFF image, with each resolution stored as a separate layer within the TIFF. This is a standard TIFF extension and is supported by most image processing applications including Photoshop, GIMP, VIPS and ImageMagick. The libtiff codec library is also perfectly capable of reading and writing such images.

Tiled Pyramidal TIFF images can also be optionally compressed using lossless Deflate or LZW. Or be compressed lossily with JPEG for smaller file sizes.

In order to test the server, you may use this example TIFF image.

@Pierre: XnView v1.99 doesn't like PalaisDuLouvre.tif. Could you please take a look at it?

TIFF is a tag-based file format for storing and interchanging raster images. A TIFF file can hold multiple images in a single file. The term "Pyramid TIFF" is used to describe a TIFF file that wraps a sequence of bitmaps that each represent the same image at increasingly coarse spatial resolutions. The individual images may be compressed or tiled. Compression is used when storage space savings are significant; tiling may yield more efficient delivery when most use involves zooming into image sections rather than viewing the whole. The term Pyramid TIFF or pyramid-encoded TIFF has been applied to different approaches, each based on valid internal TIFF structures, that have been used to support dynamic delivery of the underlying image at different spatial resolutions. Pyramid TIFF files created by different applications are not necessarily the same in structure. In particular, judging from analysis with JHOVE and the identify command in ImageMagick, Adobe's Photoshop and Image Magick generate files with different internal TIFF structures; in both cases, most software that can handle TIFFs appears to recognize the primary (full-size) TIFF without problem.

[Note: For convenience for the compilers of this resource, and to allow human readers to see the differences between the two forms of TIFF that may get called "Pyramid TIFF", we describe the two variants in a single document. In a format registry intended to support automated processes, they would need separate identification.]

• Wikipedia
  • Tagged Image File Format: Baseline TIFF » Tiles
  • Pyramid (image processing)
• Microsoft Live Labs – Seadragon
  • The Code Behind Deep Zoom Images

[XnTriq]

Test images are available for most formats supported by the library. Most of the images included in the test kit are also part of this documentation (albeit in TIFF rather than GIF or JFIF). The images are kept in a separate archive that should be located in the same directory as this software.

The latest archive of test images is located at ftp://ftp.remotesensing.org/pub/libtiff ... 8.0.tar.gz

There are no problems viewing these:

Code: Select all

cramps.tif	800x607 8-bit b&w (packbits) "cramps poster"
cramps-tile.tif	256x256 tiled version of cramps.tif (no compression)
quad-lzw.tif	512x384 8-bit RGB (lzw) "quadric surfaces"
quad-tile.tif	512x384 tiled version of quad-lzw.tif (lzw)

[xnview]

@Pierre: XnView v1.99 doesn't like PalaisDuLouvre.tif. Could you please take a look at it?

ok, i'll check

[Peter2]

@Pierre: XnView v1.99 doesn't like PalaisDuLouvre.tif. Could you please take a look at it?

ok, i'll check

Some think new? Seem not to work today ..

Peter

[xnview]

I have a problem with this file

[Peter2]

OK, thanks. No problem for me ...

Peter

[DOS386]

XnView v1.99 doesn't like PalaisDuLouvre.tif. Could you please take a look at it?

NC 6.17 converts it happily, result (4'000 x 828):

[XnTriq]

TrolLOL! Bingo!

XnView v1.99 doesn't like PalaisDuLouvre.tif. Could you please take a look at it?

NC 6.17 converts it happily, result (4'000 x 828):

[Peter2]

And what is the difference to viewing with XnView? There are 6 frames, but I can only display 1-3, and Nr. 3 has small coloured lines in the middle of the black area.

Peter